Uxcell 10mm Diameter Diamond Particles Coated Ceramic Tile Glass Hole Saw Bit Product Name : Glass Hole Saw;Hole Diameter : 10mm/ 0.4" Material : Metal, Diamond Particles;Color : Silver Tone Shank Size : 24 x 6.5mm/ 0.93" x 0.26" (L*D);Side Hole Size : 9.6 x 3.2mm/ 0.38" x 0.12"(L*W) Total Length : 52mm/ 2.1";Weight : 9g Package Content : 1 x Glass Hole Saw